In Dev build, we would like to see if SSLClientSocketNSS object...

net/socket/ssl_client_socket_nss.h

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_SOCKET_SSL_CLIENT_SOCKET_NSS_H_
 #define NET_SOCKET_SSL_CLIENT_SOCKET_NSS_H_
 #pragma once
 
 #include <certt.h>
 #include <keyt.h>
 #include <nspr.h>
 #include <nss.h>
 
 #include <string>
 #include <vector>
 
 #include "base/scoped_ptr.h"
+#include "base/synchronization/lock.h"
+#include "base/threading/platform_thread.h"
 #include "base/time.h"
 #include "base/timer.h"
 #include "net/base/cert_verify_result.h"
 #include "net/base/completion_callback.h"
 #include "net/base/host_port_pair.h"
 #include "net/base/net_log.h"
 #include "net/base/nss_memio.h"
 #include "net/base/ssl_config_service.h"
 #include "net/base/x509_certificate.h"
 #include "net/socket/ssl_client_socket.h"
@@ skipping 130 matching lines @@
   static SECStatus ClientAuthHandler(void* arg,
                                      PRFileDesc* socket,
                                      CERTDistNames* ca_names,
                                      CERTCertificate** result_certificate,
                                      SECKEYPrivateKey** result_private_key);
 #endif
   // NSS calls this when handshake is completed.  We pass 'this' as the second
   // argument.
   static void HandshakeCallback(PRFileDesc* socket, void* arg);
 
+  // The following three methods are for debugging 65948. Will remove this code
+  // after fixing 65948.
+  void EnsureThreadIdAssigned() const;
+  bool CalledOnValidThread() const;
+  void DetachFromThread();
+
   CompletionCallbackImpl<SSLClientSocketNSS> buffer_send_callback_;
   CompletionCallbackImpl<SSLClientSocketNSS> buffer_recv_callback_;
   bool transport_send_busy_;
   bool transport_recv_busy_;
   // corked_ is true if we are currently suspending writes to the network. This
   // is named after the similar kernel flag, TCP_CORK.
   bool corked_;
   // uncork_timer_ is used to limit the amount of time that we'll delay the
   // Finished message while waiting for a Write.
   base::OneShotTimer<SSLClientSocketNSS> uncork_timer_;
@@ skipping 77 matching lines @@
   // the last NPN protocol used is serialised in |ssl_host_info_|
   // and kept in these fields:
   SSLClientSocket::NextProtoStatus predicted_npn_status_;
   std::string predicted_npn_proto_;
   bool predicted_npn_proto_used_;
 
   base::TimeTicks start_cert_verification_time_;
 
   scoped_ptr<SSLHostInfo> ssl_host_info_;
   DnsCertProvenanceChecker* const dns_cert_checker_;
+
+  // The following two variables are added for debugging 65948. Will remove this
+  // code after fixing 65948.

[wtc, 2011/02/11 22:43:50]

Nit: please say "bug 65948" or http://crbug.com/65948 instead
of just "65948".  Make the same changes to lines 170-171 above.

I think the next line (line 276) can be removed.

[ramant (doing other things), 2011/02/11 23:42:41]

Done.

+  // Added the following code Debugging in release mode.
+  mutable base::Lock lock_;
+  // This is mutable so that CalledOnValidThread can set it.
+  // It's guarded by |lock_|.
+  mutable base::PlatformThreadId valid_thread_id_;
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_SSL_CLIENT_SOCKET_NSS_H_